# US 2024/0200326 A1 · Fire rated movement joints

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- Number: US 2024/0200326 A1
- Document ID: US20240200326A1
- Status: Published application
- Kind: A1
- Application number: 18/587,932
- Filed: 2024-02-26
- Published: 2024-06-20
- Earliest claimed: 2022-04-14
- Assignees: Tenmat Limited
- Applicants: Tenmat Limited
- Inventors: Daniel Philip REID; Ian HAINSWORTH; Rupert COGGON
- Web page: https://patentgrep.com/patent/US20240200326A1

## CPC

- E04B 1/947: {by closing openings in walls or the like in the case of fire (fire-proof doors E06B5/16)}
- E04B 2/7411: {Details for fire protection}
- E04B 1/948: {Fire-proof sealings or joints (for doors or windows E06B5/164)}
- E04B 2/7457: {with wallboards attached to the outer faces of the posts, parallel to the partition (E04B2/7459 takes precedence)}
- E04B: GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS (border constructions of opening in walls, floors or ceilings E06B1/00; {electromagnetic shielding H05K9/0001})

## Abstract

The present disclosure is directed toward a fire barrier for use in a fire rated movement joint (100) for an internal compartment wall. The fire barrier (132) comprises a strip of intumescent (126) material enclosed in a scrim (134), and the scrim (134) comprises a gusset (136) into which the intumescent (126) expands when reacting to heat.

## Claims

### Claim 1

A fire barrier for use in a movement joint of an internal compartment wall, comprising a strip of intumescent material enclosed in a scrim, and wherein the scrim comprises a gusset into which the intumescent expands when installed in the movement joint and reacting to heat.

### Claim 2 (depends on 1)

The fire barrier of claim 1, wherein the scrim allows for at least partial expansion of the intumescent through the scrim when the intumescent reacts to heat.

### Claim 3 (depends on 1)

The fire barrier of claim 1, wherein the gusset is sized to force reverse expansion of the intumescent after an initial forward expansion of the intumescent into the gusset, when the intumescent reacts to heat.

### Claim 4 (depends on 1)

The fire barrier of claim 1, wherein the scrim is formed from glass cloth.

### Claim 5 (depends on 1)

The fire barrier of claim 1, wherein the scrim comprises a reinforcement layer.

### Claim 6 (depends on 5)

The fire barrier of claim 5, wherein the reinforcement layer is aluminium.

### Claim 7 (depends on 1)

The fire barrier of claim 1, wherein a shape of the gusset is maintained by adhesive with melting temperature substantially the same as the reaction temperature of the intumescent.